CN1264023C - 数据采集方法、补偿磁场偏移的方法以及磁共振成像装置 - Google Patents

数据采集方法、补偿磁场偏移的方法以及磁共振成像装置 Download PDF

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Publication number
CN1264023C
CN1264023C CNB011162759A CN01116275A CN1264023C CN 1264023 C CN1264023 C CN 1264023C CN B011162759 A CNB011162759 A CN B011162759A CN 01116275 A CN01116275 A CN 01116275A CN 1264023 C CN1264023 C CN 1264023C
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data
pulse train
magnetic field
gradient
collect
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Chinese (zh)
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CN1336557A (zh
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植竹望
小杉进
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GE Medical Systems Global Technology Co LLC
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GE Medical Systems Global Technology Co LLC
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CNB011162759A 2000-04-07 2001-04-09 数据采集方法、补偿磁场偏移的方法以及磁共振成像装置 Expired - Fee Related CN1264023C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP106675/2000 2000-04-07
JP106675/00 2000-04-07
JP2000106675A JP3513076B2 (ja) 2000-04-07 2000-04-07 Ｍｒｉ装置

Publications (2)

Publication Number Publication Date
CN1336557A CN1336557A (zh) 2002-02-20
CN1264023C true CN1264023C (zh) 2006-07-12

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CNB011162759A Expired - Fee Related CN1264023C (zh) 2000-04-07 2001-04-09 数据采集方法、补偿磁场偏移的方法以及磁共振成像装置

Country Status (5)

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US (1) US6456073B2 (ko)
EP (1) EP1143258A3 (ko)
JP (1) JP3513076B2 (ko)
KR (1) KR100424238B1 (ko)
CN (1) CN1264023C (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3858194B2 (ja) * 2001-04-04 2006-12-13 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｍｒｉ装置
JP3796455B2 (ja) * 2002-02-22 2006-07-12 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｍｒｉ装置
WO2005000116A1 (ja) * 2003-06-30 2005-01-06 Hitachi Medical Corporation 磁気共鳴撮影装置
US7224164B2 (en) 2003-07-07 2007-05-29 Koninklijke Philips Electronics N.V. Method of monitoring a magnetic field drift of a magnetic resonance imaging apparatus
DE602004010686T2 (de) * 2003-09-16 2009-01-02 Koninklijke Philips Electronics N.V. Verfahren zur Überwachung eines Magnetfelddriftens einer Magnetresonanzbildgebungsvorrichtung
JP4619674B2 (ja) * 2004-03-24 2011-01-26 株式会社東芝 磁気共鳴イメージング装置
WO2006038532A1 (ja) 2004-10-01 2006-04-13 Asahi Kasei Chemicals Corporation ポリオレフィン微多孔膜
JP4494937B2 (ja) 2004-11-08 2010-06-30 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｍｒｉ装置
US7064550B2 (en) * 2004-11-16 2006-06-20 General Electric Company Method and apparatus for field drift compensation of a superconducting magnet
US7534481B2 (en) * 2006-08-08 2009-05-19 3M Innovative Properties Company Shaped elastic tab laminates
US8362773B2 (en) * 2010-10-05 2013-01-29 General Electric Company System and method for modeling gradient coil operation induced magnetic field drift
DE102011005728B4 (de) * 2011-03-17 2012-10-31 Siemens Aktiengesellschaft Verzeichnungsfreies Bestimmen von Magnetresonanzdaten
CN102846319B (zh) * 2011-12-12 2014-04-16 中国科学院深圳先进技术研究院 基于磁共振的脑功能成像扫描方法和系统
CN102866369B (zh) * 2011-12-12 2014-12-24 中国科学院深圳先进技术研究院 磁共振的主磁场漂移矫正方法和系统
JP6571434B2 (ja) * 2015-07-27 2019-09-04 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置及び磁気共鳴イメージング装置のアーティファクト抑制方法
KR101733800B1 (ko) 2015-09-18 2017-05-10 삼성전자주식회사 자기 공명 영상 장치가 혈관을 스캔하는 방법 및 그 자기 공명 영상 장치
ES2972519T3 (es) * 2016-05-04 2024-06-13 Procter & Gamble Material de trama no tejido que tiene una unión favorable para fabricar laminado estirable direccional, y laminado estirable direccional.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60222044A (ja) * 1984-04-20 1985-11-06 横河電機株式会社 核磁気共鳴による診断方法および装置
US4885542A (en) * 1988-04-14 1989-12-05 The Regents Of The University Of California MRI compensated for spurious NMR frequency/phase shifts caused by spurious changes in magnetic fields during NMR data measurement processes
US4970457A (en) * 1989-04-05 1990-11-13 The Regents Of The University Of California MRI compensated for spurious rapid variations in static magnetic field during a single MRI sequence
DE69211806T2 (de) * 1991-10-25 1996-10-31 Univ Queensland Korrektur von Signalverzerrungen in einem magnetischen Kernresonanzapparat
US5652514A (en) * 1996-03-25 1997-07-29 Toshiba America Mri, Inc. Correction for field variation in steady-state MRI by repeated acquisition of zero k-space line

Also Published As

Publication number Publication date
US20010028249A1 (en) 2001-10-11
JP2001299720A (ja) 2001-10-30
CN1336557A (zh) 2002-02-20
EP1143258A2 (en) 2001-10-10
US6456073B2 (en) 2002-09-24
KR100424238B1 (ko) 2004-03-24
KR20010091046A (ko) 2001-10-22
EP1143258A3 (en) 2003-08-13
JP3513076B2 (ja) 2004-03-31

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